Psychological Monographs, Volumen11American Psychological Association, 1909 |
Otras ediciones - Ver todas
Términos y frases comunes
Animal Intelligence animals animals tested apparatus appear artificial stimuli association attention auditory imagery auditory presentation average blue Brown Thrush cerea flexibilitas changes Chipping Sparrow color curve fell determine digits discrete stimulus discrimination effect experimental experiments factors fatigue food reaction Geiger Geissler tube given grades green growth hundred per cent imitated cluck immediate recall increase index-hand indicate influence instinctive interval introspections investigation judgment later learning letters light material memory ment mental method minutes motor coördinations motor imagery Mourning Dove movements muscle negative nest nonsense syllables normal subjects number of errors observer patient perception period position practice pronunciation Psychol pupils reaction of fear receptacles record red-orange red-red-orange Redwing relation seems sensations simultaneous space perception tapping tion violet visual imagery visual presentation visually minded vocalization weeks words Wundt yellow ΙΟ
Pasajes populares
Página 23 - ... at the same hour and on the same day of the week. The experiments used were the ones already described and were performed exactly as described. The curves appear in the "comparison of normal subjects with dementia praecox patients...
Página 5 - Amoeba streams in the presence of red light. 2. Streaming is retarded, stopped, or reversed by rays from the violet end of the spectrum. 3. Further, the effectiveness of the following kinds of light as inhibitors of protoplasmic flow diminishes in the order named : white, violet, red. 4. Enucleated amoebae stream in red light, and cease to stream in violet or white light.
Página 12 - ... but that, at a critical period, when the animal was not strongly drawn to either fork, the fact that it happened to come upon one of them first was in some degree an influence leading it to bite at that one. In summary, the experiments indicate the following conclusions: I. Semotilus atromaculatus distinguishes red from green and from blue pigments, the discrimination being independent of the relative brightness of the colors.
Página 155 - ... perceptive process. That this should be true still when more than half the time is given to this imagery indicates how very essential it must be. V. SUMMARY AND CONCLUSIONS. One of the things determined will be seen to be of more importance than its separate consideration above indicated. This is the fact that, irrespective of the method of presentation and the manner of learning, the typical mode of recall for all observers was through the visual imagery of the letters.
Página 11 - The writer is thoroughly convinced, after long study of the behavior of this organism, that if amoeba were a large animal, so as to come within the everyday experience of human beings, its behavior would at once call forth the attribution to it of states of pleasure and pain, of hunger, desire, and the like, on precisely the same basis as one attributes these things to the dog.
Página 15 - I conclude from my experimental study of vision that although the dancer does not possess a color sense like ours, it probably discriminates the colors of the red end of the spectrum from those of other regions by difference in the stimulating value of light of different wave lengths, that such specific stimulating value is radically different in nature from the value of different wave lengths for the human eye, and that the red of the spectrum has a very low stimulating value for the dancer.
Página 6 - Earthworms retreat into their burrows during the day time because of their negative phototropism. They emerge at night, not so much because of darkness as because of the positive phototropism of faint light.
Página 125 - ... lower school grades. The child up to ten, at least, is predominantly a visualizer. Concrete visual, and probably all concrete imagery, tends to fall off in the more advanced grades, its place being taken by verbal imagery. There is a great loss in vividness in concrete imagery in the higher grades of the common schools. The importance of motor imagery, both of the hand and of the...
Página 10 - ... Wagner, ascribe to the influence of fatigue. Furthermore, the subjective state of S was carefully ascertained during the progress of the investigation. A general comparison of that subjective condition with the percentage of errors during each test gives further evidence in support of my conclusion that in at least one normal case the •percentage of errors in cutaneous tactile discrimination bears no constant nor even relative correspondence to the menial fatigue experienced by the subject.
Página 9 - Thus the phenomena of positive and negative chemotaxis, thermotaxis, phototaxis and galvanotaxis, which are so highly interesting and important in all organic life, follow with mechanical necessity as the simple results of differences in biotonus, which are produced by the action of stimuli at two different poles of the free living cell.